LeCountdown/LeCountdown/Views/Countdown/RangeFormView.swift

//
//  RangeFormView.swift
//  LeCountdown
//
//  Created by Laurent Morvillier on 22/11/2023.
//

import SwiftUI

struct RangeFormView: View {

    @Environment(\.dismiss) private var dismiss

    @ObservedObject var timeRange: TimeRange
    
    @State var namePlaceholder = "name"
    @State var name: String = ""
    @State var duration: TimeInterval = 0.0
    
    var body: some View {
        
        Form {
            Section(header: Text("Name")) {
                TextField(self.namePlaceholder, text: self.$name)
            }
            
            Section {
                TimePickerView(duration: self.$duration)
            } header: {
                LabeledContent("Duration", value: self.duration.hourMinuteSecond)
                    .font(.footnote)
            }
            
            Section {
                Button {
                    self._doneHandler()
                } label: {
                    HStack {
                        Spacer()
                        Text("Done").fontWeight(.bold)
                        Spacer()
                    }
                }
            }
        }.onAppear {
            if let name = self.timeRange.name, !name.isEmpty {
                self.namePlaceholder = name
            }
            self.duration = self.timeRange.duration
        }
    }
    
    fileprivate func _doneHandler() {
        if self.name.isEmpty {
            self.timeRange.name = self.namePlaceholder
        } else {
            self.timeRange.name = self.name
        }
        self.timeRange.duration = self.duration
        
        self.dismiss()
    }
    
}

struct RangeFormView_Previews: PreviewProvider {

    static var previews: some View {
        Text("tilting crash")
        
//        RangeFormView(
//            timeRange: TimeRange.fake(context: PersistenceController.preview.container.viewContext),
//            isPresented: .constant(true))
//        .environment(\.managedObjectContext, PersistenceController.preview.container.viewContext)

    }
}